Charles w



(NoMoael.) y l y o. W. KERSTBTBR.

AUTOMATIC PIRE EXTINGUISHBR.

10.400,688. PatentedApr.2,1889

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nlllmseeessammuw @Mmmm a muu UNiTnn STATES PATENT OFFICE.

CHARLES W. KERSTETER, OF CHICAGO, ILLINOIS, ASSIGNOR O F ONE-HALF f TOVILLIAM E. SMITH, OF SAME PLACE. l

AUTOMATIC FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 400,688, dated April 2,1889.

Application filed JanuaryZ, 1889. Serial No. 297.671. (No model.)

To all whom it may concern.- levers J bear against the outer sides of.said

Beitknown that-I, CHARLES W. KERSTETER, lugs, while the links I restupon the upper a citizen of the United States, residing at Chisurface ofthe same lugs. rlhe levers .I have cago, in the county of Cook and Stateof Illiprojections j, which hook over the lugs f.

nois, have invented certain new and useful These levers also have shortarms k, which 55 Improvements in Automatic Fire-Extinguishlprojectinwardly and have a bearing on the ers, of which the following is aspecification. valve C, which may have short arms c thereon My inventionrelates to that class of autoto form rests for the arms lo. maticfire-extinguishers wherein a valve is K is a deflector, which will besecured to t-he Io held in position to close the orifice of a' nozunderside of the crossbar of the yoke over 6o zle by levers secured byfusible metal, whereby the orifice of the nozzle. This deiiector is thevalve is released when the heat becomes made from a disk of sheet metaland has rasufficient to fuse the metal, and the water isdial openingsformed by slitting the metal sues from the orifice, and is sprayed bymeans from near the center of the disk to near its I5 of a deilectoragainst which the water disperiphery and bending it downwardly from 65charges 5 and my invention consists in the deone side of the slit. Themetal may also be vices and combination of devices hereinafter cut atright angles to the radial slits near the described and claimed.periphery and the points bent downwardly.

In the drawings, Figure I is a side eleva- I prefer the latterconstruction, and I also tion of my extinguisher in the position itocprefer to bend down these points, so that they 7o cupies when in use.Fig. 2 is a plan view, will be at a screw-pitch similar to the bladesand Fig. 3 is a detail. of a propeller. lVith this construction the Inthe drawings, A is a T-coupling forming water issuing from the nozzlewill strike the a part of the water-supply pipe, and into the edge ofthe blades, and part of it will be destem of which is screwed a nozzle,B, toV the flected through the openings and a part of it 75 orifice ofwhich is fitted a cap-valve, C. This returned without passing throughthem, thus valve will preferably have the lugs o, adapted breaking upthe water into a very fine spray. to embrace the end of the nozzle, andthus pre- I claimvent lateral movement of the valve. 1. In an automaticfire-extinguisher, the

D is a yoke which is .fitted to the nozzle combination of a nozzle,ayoke projectingbe- 8o and secured either by the set-screw d or by yondthe orifice of the nozzle and having rescreW-threads, or both. This yokehas at the taining-lugs on each of its upright portions, upper and lowerends of its upright arms, rea cap-valve adapted to close thenozzle-orispectively, projectinglugs e e and f f. These fce, leversadapted to engage the lugs of the 3 5 lugs are hooked or bent at theirouter ends yoke-uprights and having short arms bearing 8 5 andpreferably project in opposite directions on the valve, and a fusiblestrip connected at from said side arms. its respective ends by arms andlinks to the G'is a fusible strip composed of two thin upper ends of thelevers, substantially as demetal plates connected by solder. (See Fig.scribed.

40 3.) -Strip G is connected onl both sides by 2. In an automaticfire-extinguisher, the 9o short arms II H and links I I to levers J J.combination of anozzle, a yoke projecting be- The arms H have their endsbentinopposite yond the oriiice of the nozzle and having lugsdirections, to adapt them to enter aperturesg toward each end of itsupright portions, a in the ends of the strip G ,and the openings valveadapted to close the nozzle-orifice, le-

of the links I. The bent ends of these arms, vers having projections toengage the lower 95 which pass through the openings of thelinks, lugs ofthe yoke-uprights and having their project below the vplane thereof andbear upper ends extended to bear upon the outer against the inner sidesof the lugs e, the surside of the upper lugs and provided with 4faces incontact being beveled to prevent vershort arms adapted to bear on thevalve, and

tical movement, and the upper ends of the a fusible strip connected atits respective ends Ioo by arms and links to the uppex` ends of the thewater in levers, substantially as described.

3. In an automatic sprinkler, a deiector sel, f cured over thenozzie-orifiee, said defiector CHARLES A KILRSTE FER' Witnesses:

C. C. LINTHICUM, T. D. BUTLER.

to spray, substantially as de-y scribed.

5 comprising a disk slitted radiallyend having the metal thereof turneddown at bhe edges of the slits ait a screw-pitch,wherebyto break

